September weather forecast
Ellisville, FL

September, the first month of the autumn in Ellisville, is still a tropical month, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 72°F (22.2°C).

Temperature

At the start of September, Ellisville's average high-temperature reaches a still hot 87.3°F (30.7°C), subtly different from the preceding month. September nights observe an average temperature dip to a pleasant 72°F (22.2°C).

Heat index

September's mean heat index is calculated to be a very hot 102.2°F (39°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 78%.

Rainfall

In September, in Ellisville, the rain falls for 16 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Ellisville, during the entire year, the rain falls for 145.8 days and collects up to 13.39" (340mm) of precipitation.

Daylight

In September, the average length of the day in Ellisville is 12h and 20min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.